Answer:
Osmoregulation is an example of a negative feedback, homeostatic control system. This system detects changes in the salinity of the water Chinook salmon live in, working to keep the body water concentration constant.
Explanation:
Answer:
The correct answer is option (D) there was a time in Pennsylvania history when dinosaur existed.
Explanation: A paleontologist discovers a rock slab on which the footprints of a Pennsylvania dinosaur are well preserved. This means that there was a time in Pennsylvania history when dinosaur existed in this area. Here fossil is a fragment of rock on which the footprints of dinosaur is present.
The Lithosphere is the layer of solid ground that makes up all of Earth’s continents. It is the <span>rigid, outermost shell of Earth.</span>
It would help you know how they all work together like how the musicular system helps the digestive system during digestion
Cell membrane, Organells, flagella
